mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
116 lines
4 KiB
C++
116 lines
4 KiB
C++
#ifndef SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP
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#define SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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namespace sprout {
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//
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// placeholder
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//
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template<int N>
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struct placeholder {};
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template<>
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struct placeholder<-1> {
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public:
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template<int N2>
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SPROUT_CONSTEXPR operator sprout::placeholder<N2>() const {
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return sprout::placeholder<N2>();
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}
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};
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namespace placeholders {
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namespace {
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<1> _1 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<2> _2 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<3> _3 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<4> _4 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<5> _5 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<6> _6 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<7> _7 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<8> _8 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<9> _9 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<10> _10 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<11> _11 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<12> _12 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<13> _13 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<14> _14 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<15> _15 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<16> _16 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<17> _17 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<18> _18 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<19> _19 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<20> _20 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<21> _21 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<22> _22 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<23> _23 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<24> _24 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<25> _25 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<26> _26 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<27> _27 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<28> _28 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<29> _29 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<30> _30 = {};
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SPROUT_STATIC_CONSTEXPR sprout::placeholder<-1> _ = {};
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} // anonymous-namespace
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} // namespace placeholders
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using sprout::placeholders::_1;
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using sprout::placeholders::_2;
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using sprout::placeholders::_3;
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using sprout::placeholders::_4;
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using sprout::placeholders::_5;
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using sprout::placeholders::_6;
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using sprout::placeholders::_7;
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using sprout::placeholders::_8;
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using sprout::placeholders::_9;
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using sprout::placeholders::_10;
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using sprout::placeholders::_11;
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using sprout::placeholders::_12;
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using sprout::placeholders::_13;
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using sprout::placeholders::_14;
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using sprout::placeholders::_15;
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using sprout::placeholders::_16;
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using sprout::placeholders::_17;
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using sprout::placeholders::_18;
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using sprout::placeholders::_19;
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using sprout::placeholders::_20;
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using sprout::placeholders::_21;
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using sprout::placeholders::_2;
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using sprout::placeholders::_23;
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using sprout::placeholders::_24;
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using sprout::placeholders::_25;
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using sprout::placeholders::_26;
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using sprout::placeholders::_27;
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using sprout::placeholders::_28;
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using sprout::placeholders::_29;
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using sprout::placeholders::_30;
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using sprout::placeholders::_;
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//
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// is_placeholder
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//
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template<typename T>
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struct is_placeholder
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: public std::integral_constant<int, 0>
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{};
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template<typename T>
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struct is_placeholder<T const>
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: public sprout::is_placeholder<T>
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{};
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template<typename T>
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struct is_placeholder<T volatile>
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: public sprout::is_placeholder<T>
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{};
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template<typename T>
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struct is_placeholder<T const volatile>
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: public sprout::is_placeholder<T>
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{};
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template<int N>
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struct is_placeholder<sprout::placeholder<N> >
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: public std::integral_constant<int, N>
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{};
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} // namespace sprout
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#endif // #ifndef SPROUT_FUNCTIONAL_BIND_PLACEHOLDER_HPP
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